Boot-tree



(No Model.)

G. H. CLARK.

BOOT TREE.

#u #4/ @a if t jecting open frame. B'.

UNITED STATES PATENT OFFICE.

GEORGE ll. CLARK, OF CAMPELLO, MASSACHUSETTS, ASSIGNOR TO THE CLARK RELASTNG AND SHOE-TREEING COMPANY, OF PORTLAND,

MA INE.

BOOT-TREE.

SPECIFICATION forming part of Letters Patent No. 388,831, dated September 4. 1888.

Application filed Mart-h 527, 1F88.

To all whom, it may concern:

Be it known that I, GEORGE H. CLARK, of Campello, county of Plymouth, State of Massachusetts, have invented an Improvement in Jacks for Holding Boots or Shoes while being Operated upon, of which the following description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

This invention has for its object to construct a jack for holding boots or shoes while being operated upon-such, for instance, as while heilig treed or otherwise finished.

In accordance with this invention, thejack is composed of two similar parts or members forming the leg portion, one of the said parts being stationary or fixed to a rotatable holder, while the other part is pivoted to the stationary part, to be separated from the said part or member when desired. A suitable wedge-shaped block is interposed between the two parts or members, which is moved rearwardly by a treadle to separate one of the said parts or members from the other. Each part or member has at its front end a pin, which receives upon ita lastconstructed in two partsnamely, a heel portion and a fore part-substantially as shown and described in an application for United States Letters Patent, Serial N o. 268, 620, tiled by me March 27, 1888, one part upon each pin, so that as the parts or members of thejack are separated the heel portieri and fore part will be separated to snugly fill, fit., or stretch the boot or shoe. The holder is mounted upon a ti ting or pivoted frame, so that the jack may be held at any desired incli` nation.

The drawing shows in side elevation ajack constructed in accordance with this invention for holding boots or shoes.

rPhe main post orstandard A has pivotcd to it at its top, as by a bolt or pivot, 10, a frame composed of the top plate, B, and the side plate, B2,which upon its upper side has a pro- A holder, C, is fitted in the open frame H, and is free to be rotated or turned therein as desired.

Thejack is composed ofthe members (L and b, one of which, as a, is fixed to the rotatable Serial No. 268.691. (No molel.)

holder C, and the other, as b, is pivoted to the said stationary member n. to be separated therefrom when desired. A rod, @,{see dotted lines) passes through the holder C, said rod having at one end a wedge-block, c, which is interposed between the members of the jack, while the other end ot' the rod has attached to it a grooved hub, c2. A spiral spring (sec dotted lines) surrounds the rod c between the wedgeblock c and that part of the stationary member a to which the member b is pivoted. A bell-crank lever, (l d', is pivoted within or to the top plate, one arm, d, of the said lever entering groove ofthe hub c2, while the other arm, d, has attached to it the treadlc-rod d2, the latter being attached loosely at its lower end to the pivoted treadle. By depressing the treadle T the treadlc-rod d2 is lifted, and by the bell crank lever the rod c and its wedgelolock c are moved rearwardly. The inclined side of the wedge-block bears upon the roller bx, placed within the movable member b, and as the said wedgeblock is moved rearwardly the movable member b is separated. Thejack may be rotated with the holder c, and hence the necessity of grooving the hub c2.

To lock the holder C in any desired position, a screw-threaded rod, c, is inserted in the frame B', which may be made to engage and hold the holder. The screw rod is herein shown as forming a part of the cranlcarm c'. The front end of each member of the jack has a pivoted pin, ,(sce dotted lines) upon which pins the last which is contained in the boot or shoe is placed.

The last herein employed is composed of two parts-namely, a heel portion, o, and a fore part, o'-substantially as shown and described inthe application above referred to, so that one of the pins enters each member of the last.

In operating the jack the treadle is dc pressed and the two parts or members of the jack thereby separated, as before described, and the two parts or members of the last will be thereby separated to snugly fit or stretch the boot or shoe, holding it while being treed or otherwise operated upon. The treadle T will preferably have any suitable locking device to hold it in any desired position. The

frame or heel B B2, tilting as described, per mits the jack to be presented nt any angle or inclination desired.

I claim- 1. In a jack for holding boots or shoes While being operated upon, the separable members a b, having the pins i 17 projecting,` from thc ends thereof, combined with a two-part last adapted to beheld upon the said pins, substantially as and for the purpose set forth.

2. In a jack for holding boots or shoes while being operated upon, the fixed member a, the pivoted member b, and means, substantially as described, l'or moving the member I), combined with the pi ns i ,proj ccting from the front end of the members a b, substantially as and for the purposes set forth.

3. In a jack for holding boots or shoes while being operated upon, the tilting head or frame,

combined with theholder (,thesep:1.rable members a l, attached thereto, the pins t' i, projecting; from the ends of the said members, and a suitable last therefor, substantially as dcscribed.

In testimony,Y Whereon I have signed my name 25 to this specification in the presence of two subscribing witnesses. 

